Steam-generator.



A. L. AUSTIN.'

STEAM GENERATOR.

APPLICATION FILED JUNE 19, 1911.

Patented May 28, 1912.

2 SHEETS-SHEET 1.

COLUMBIA PLANouRAPi-l co.. wAsHlNurcN. nA c.

Patented May 28, 1912.

2 SHEETS-SHEET.2.

COLUMBIA PLANOGRPH co.,\vASHlNa1'oN. n. c.

ALBERT L. AUSTIN, 0F LAKEWOOD, OHIO.

STEAM-GENERATOR.

' Specification of Letters Patent.

Y Patented May 28,1912.

Application filed .Tune 19, 1911. Serial No. 634,131.

To all lwhom, t may concern.'

Be it known that I, ALBERT L. AUSTIN, a citizen of the United States,residing at Lakewood, in the county of Cuyahoga andy State of Ohio, haveinvented a certain new and useful Improvement in Steam-Generators, ofwhich the following is a full, clear, and exact description.

This invention relates to improvements in the type of steam generatorswhich forms the subject matter of my allowed application Serial No.601,557, led January 9, 1911.

prior application, particularly in respect to economy of fuelconsumption, and time rey quired to get up Steam. e

The accompanying drawing shows and the i following description gives indetail the particular exemplificationv of the invention which I nowregard as best; and the'features of novelty are clearly defined in theappended claims.

In the drawing, Figure 1 is a central vertical section of a steamgenerator embodying the invention. Fig. 2 is a sectional plan view onthe line 2,-2 of Fig. 1. Fig.l 3 is a sectional plan view in the planeof line 3e-3 on Fig. 1 with the tubesremoved.

The generator as shown includes a casing 1 made of sheet iron or othersuitable material. Across it, at a suitable elevation, a partition 3 issecured, thereby forming above this partition and within the casing thewater chamber 2. Another partition 4 is secured across thecasing 1 nearthe lower end thereof, thereby forming between it and the partition 3 acoil chamber 5, and below said partition 4 a burner chamber 6. A tube 7is tightly fitted in or over a central opening in the partition. 3, andextends upward therefrom through the water chamber and projects into thesteam dome 8 which is on top of the water chamber and in communicationtherewith. The upper end of the tube 7 is closed by a cap 9. yA secondtube 10 which is preferably made of asbestos or some other heatresisting and non-conducting material is supported by the partition4ever a cen-V tral opening therein, and this tube 10 extends from thepartition 4 upward into and nearly to the top of tube 7. The tube 10 isof considerably smaller diameter than the tube 7, and therefore anannular down flue is formed between them.

Vithin the coil 'chamber 5 are a plurality of coils 12 of pipe,each coilbeing disposed on inclines as shown, and the upper convolution of eachcoil being connected with t-he water chamber 2 through the partition 3.

The pipes which are continuations of the lower convolution of each coilare extended laterally under, or through a hole in, the lower end of thetube 10, and these several pipes 13 extend upward through tube 10, andare connected with the cap 9, through 'which they communicate with thesteam drome. y

A burner 14 is disposed within the chamber 6 directly beneath the lowerend of the tube 10, so' that the re blast from said burner will bedischarged directly into the lower end of this tube. The products ofcombustion rising in this tube are in intimate contact with the pipes 13therein, and quickly heat them, and the small quantity of water theycontain, transforming the latter into steam in a short time. This steamis discharged from the upper ends of said pipe into the steam dome, fromwhich it may be carried to the point of use through a pipe 15.

The products of combustion emerging from the topy of tube 10 aredeflected and flow down in theannular liue between the tubes 7 and 10,and are discharged into the coil chamber for the purpose of heating thecoils therein, andthe water which they contain. A conical baiie plate 16lixedto the casing 1 extends therefrom inward and downward. The heat andproducts of combustion, in order to escape from the coil chamber, mustpass down through and in intimate contact 'with the coils beneath thisconical baflie plate; and then they flow 'into the chimney flue or pipe17. The side walls of the coil chamber are made up of four doors 18 andfour intermediate frame members 20, to which these doorsare hinged. Thebalilelplate 16 is made in four parts, one of which is fixed to each ofthese doors.

While the specific construction shown has been described, it is to beremembered that the invention as denedby the claims is not necessarilylimited to the specific construcv tion, but that said claims areintended to indesigned with special reference to getting up steamquickly, and to continuously producing low pressure steam with a minimumof fuel consumption. It is quite obvious that these results will beattained, because the pipes 13 within tube 10 will be in intimatecontact with all of the heat .produced by the burner, and that thiscontact will be maintained during all of the time said heat is flowingupward in the tube l0. This heat is easily sufficient to transform intosteam the small quantity of water which these pipes contain. Moreover,as before stated, the entire heat from the burner 14 is first utilizedfor this purpose, and the residuum of heat of the products of combustionflowing down the flue between the tubes 7 and 10 are carried in intimatecontact with the coils and initially heat the water therein so that whenthe apparatus is operating continuously, the water flowing from thecoils into the pipes 13 will be well heated while still in the coils.

Having described my invention, I claim:

l. In a steam generator, the combination of a water chamber7 a tubepassing through the same having a closed upper end and an open lowerend, an inner tube open at both ends and Yextending from a point withinthe outer tube near the upper closed end thereof downward to a pointconsiderably below the lower end of said outer tube, pipes connectedwith the water chamber and carried into and up through the inner tube,said pipes being connected at their upper ends with openings through theclosed head of the outer tube, and a burner disposed beneath the loweropen end of the inner tube.

2. In a steam generator, the combination of a water chamber, a coilchamber below the same, a tube closed at its upper end extending upthrough the water chamber and communicating at its lower end with thecoil chamber, a second tube extending down within the first tube from apoint near the upper end thereof to a point adjacent to the burner, aburner disposed below the lower end of the said tube, and pipe coilsconnected with the water chamber and disposed within the coil chamber,pipes which are a continuation of these coils which enter the inner tubenear the lower end thereof and extend up through the same and dischargethrough openings in the closed upper end of the outer tube.

3. In a steam generator, the combination of a water chamber, a coilchamber below the same, a tube which extends up through the waterchamber and is closed at its upper end and is in communication at itslower vend with the coil chamber, a second tube which is secured over ahole in the floor of the coil chamber and extends upward therefrom intothe tube first named to a point near the upper clo-sed end thereof, aburner disposed below the lower end of the inner of said tubes, pipecoils located within the coil chamber and communicating with the waterchamber through the bottom thereof, said coils being continued as pipeswhich enter the inner tube near the lower end thereof and extend upthrough it and are con` nected with openings through the closed upperend of the outer tube.

4;. In a steam generator, the combination of a water chamber, a coilchamber below the same, a tube extending through the water chamber whichis closed at its upper end and open at its lower end, a burner chamberbelow the coil chamber, a tube open at its lower end which communicateswith the burner chamber and extends upward through the coil chamber andinto the tube first mentioned to a point near the closed upper endthereof, a plurality of coils of pipe located within the coil chamber,the coils whereof are inclined in a direction inward and downward fromthe outer wall of said chamber, the upper convolution of each coil beingconnected with the water chamber, and the lower convolution beingextended into and upward through the closed top of the outer tube, adownwardly and inwardly inclined baffle plate fixed to the wall of thecoil chamber, said coil chamber having below said baffle plate anopening for the discharge therefrom of the products of combustion.

In testimony whereof, I hereunto affix my signature 1n the presence oftwo witnesses.

ALBERT L. AUSTINd lVitnesses:

E. L. THURsToN, H. R. SULLIVAN.

Copies of this patent may be obtained for ive cents each, by addressinglthe Commissioner of Patents. Washington, D. C.

